ASP.NET RadioButtonList help. If I set a selectedItem, that item doesn't react to SelectedIndexChang
- by Hcabnettek
Hi Guys,
I have a RadioButtonList on my web form. I have tried two different means to set the selected item. I have tried in the markup, and in code, like the Page_Load event. It sets and displays correctly. My problem is that the selected radio button no longer responds to the SelectedIndexChanged event. The other items works as expected and if I remove the code that sets the selectedItem, then the radio button works as expected. Is there any way I can set a radio button through code, and it still behaves as I would expect. I am guessing, if u force a button to be selected, then it doesn't change. Does anyone know how to rememdey this so I can default select it, but still have it behave the way I want?
<asp:RadioButtonList ID="rblPaymentType" runat="server" AutoPostBack="True" RepeatDirection="Horizontal"
RepeatLayout="Flow">
<asp:ListItem Value="benefit" Text="Benefit" Selected="True"/>
<asp:ListItem Value="expense" Text="Expense" />
</asp:RadioButtonList>
This lives inside an ascx which I have an event for
public delegate void SwitchBenefitTypeHandler(object sender, EventArgs e);
public event SwitchBenefitTypeHandler SwitchedBenefit;
protected void Page_Load(object sender, EventArgs e)
{
WireEvents();
}
private void WireEvents()
{
rblPaymentType.SelectedIndexChanged += (sender, args) => SwitchedBenefit(sender, args);
}
Then on the aspx, I wire a handler function to that event.
if (header is PaymentHeader)
(header as PaymentHeader).SwitchedBenefit += (paymentForm as PaymentBaseControl).Update;
Finally the handler function
public override void Update(object sender, EventArgs e)
{
if (sender is RadioButtonList)
{
IsExpense = (sender as RadioButtonList).SelectedValue == "expense";
UpdateCalcFlag();
UpdateDropDownDataSources();
UpdatePaymentTypeDropDown();
ResetBenefitLabels();
FormatAmountTextBox();
}
}
I hope that's enough code. Everything works great when I don't set the SelectedItem in the RadioButtonList but I need it set.
Here's a link to someone with the same problem. It is ASP.NET AJAX related. Click Here
Thanks,
~ck in San Diego
